EP 0253324 B1 19960313 - Method and apparatus for reducing sulphur dioxide content in flue gases
Title (en)
Method and apparatus for reducing sulphur dioxide content in flue gases
Title (de)
Verfahren und Vorrichtung, um Schwefeldioxyd in Rauchgasen zu reduzieren
Title (fr)
Procédé et dispositif pour réduire l'anhydride sulfureux contenu dans des gaz de fumée
Publication
Application
Priority
- US 464487 A 19870120
- US 88546386 A 19860714
Abstract (en)
[origin: EP0461678A1] A method and apparatus are employed to reduce the sulfur dioxide produced by the combustion of a sulfur-containing fuel in a combustion chamber. Part of the combustion air is introduced into the combustion chamber with and closely adjacent the fuel. Another part of the combustion air is introduced into the combustion chamber above and downstream of the fuel and relatively remote therefrom under conditions which buffer the flame front and reduce peak flame temperatures therein. Finely divided limestone particles or the like are aspirated into the combustion chamber by the air introduced above the fuel and distributed thereby throughout the gases flowing downstream through the combustion chamber wherein the limestone particles are calcined to lime particles which react with the sulfur dioxide in the combustion reaction gases to produce calcium sulfate. There is no premixing of the particles and the aspirating air before they enter the combustion chamber. Various parameters are controlled to produce the desired results. <IMAGE>
IPC 1-7
IPC 8 full level
F23C 6/04 (2006.01); B01D 53/50 (2006.01); B01D 53/81 (2006.01); F23C 99/00 (2006.01); F23J 3/00 (2006.01); F23J 7/00 (2006.01)
CPC (source: EP)
B01D 53/508 (2013.01); F23J 3/00 (2013.01); F23J 7/00 (2013.01)
Citation (examination)
Perry's Chemical Engineers Handbook, 5th Edition, McGraw Hill, New York, 1973 pages 5-46, 5-47
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0253324 A2 19880120; EP 0253324 A3 19880518; EP 0253324 B1 19960313; AT E135252 T1 19960315; AT E138284 T1 19960615; AU 2842492 A 19930114; AU 603366 B2 19901115; AU 640577 B2 19930826; AU 7538287 A 19880121; CA 1309571 C 19921103; CA 1321464 C 19930824; DE 3751733 D1 19960418; DE 3751733 T2 19960808; DE 3751817 D1 19960627; DE 3751817 T2 19960926; EP 0461678 A1 19911218; EP 0461678 B1 19960522; ES 2083948 T3 19960501; ES 2086440 T3 19960701; GR 3019674 T3 19960731; GR 3020405 T3 19960930; JP H0743094 B2 19950515; JP S6325403 A 19880202; NO 301807 B1 19971215; NO 303269 B1 19980622; NO 872908 D0 19870713; NO 872908 L 19880115; NO 974087 D0 19970905; NO 974087 L 19970905
DOCDB simple family (application)
EP 87109975 A 19870710; AT 87109975 T 19870710; AT 91112744 T 19870710; AU 2842492 A 19921116; AU 7538287 A 19870709; CA 540139 A 19870619; CA 616387 A 19920525; DE 3751733 T 19870710; DE 3751817 T 19870710; EP 91112744 A 19870710; ES 87109975 T 19870710; ES 91112744 T 19870710; GR 960401051 T 19960419; GR 960401580 T 19960612; JP 17580587 A 19870714; NO 872908 A 19870713; NO 974087 A 19970905